|This article is about the Standard O₂ Tank in Subnautica. To see this subject's article on the Below Zero Wiki, click here.|
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The player must equip the Standard O2 Tank in the tank slot of the Paperdoll UI in order to benefit from it. While not equipped, it takes up six slots (2x3) in the inventory.
Equipping or carrying any O2 Tank will incur a swimming speed penalty. For more information, see: Swimming Speed.